.app {
    /* width:100%;
    height: 100%; */
    display: flex;
    justify-content: center;
}

.link{
    margin: 5px;
}

.routebox{
    position: absolute;
    top: 40px;
    left: 50%;
    margin-left: -400px;
    width: 800px;
    margin-top:30px;
}